What it's like facing down tennis-ball-size spiders at work

Popular Science | 3/24/2019 | Staff
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I regularly venture into the Costa Rican jungle to study poison frogs. These little guys don’t make their own poison; instead, they get toxins from the mites and ants they eat. When the mother has tadpoles, she feeds them unfertilized eggs with the same poison inside. I wanted to see whether this defends the tadpoles against predators such as snakes and spiders.

We tested snakes in the lab, but tropical banana spiders act weird in captivity. You have to observe them on their own turf—the jungle...
(Excerpt) Read more at: Popular Science
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